Analysis of Ti–6Al–4V adhesion to AISI 52100 steel and TiN during unlubricated sliding contact

Jin, Lu; Edrisy, Afsaneh; Riahi, A.R.

doi:10.1016/j.triboint.2015.04.026

Cited by 9 publications

(2 citation statements)

References 24 publications

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“…The strong adhesion tendency and the low work hardening result in a high wear rate as well as limits the extensive application of titanium alloys. 2,3 Thus, cost reduction and improved machinability have become the main driving force in the producing and processing of titanium alloys.…”

Section: Introductionmentioning

confidence: 99%

The influence of tool quality on the machining of additive manufactured and powder metallurgy titanium alloys

Tran

Gali

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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This study was carried out to investigate the impact the quality of the drill bits has on the machining behavior of additive manufacturing (AM) and powder metallurgy (PM) titanium alloys. Therefore, commercially available drill bits which typically reflect two extremes of drill bit quality were selected. The performance of coated carbide twist drills, typically recommended for the drilling of wrought titanium alloys was compared with that of high-speed steel (HSS) drills. The average torque value, specific cutting energy (SCE), and tool wear were used to evaluate the drilling performance of AM and PM titanium alloys. The results of drilling tests revealed the application of the coated carbide drill resulted in lower torque and SCE values, less flank wear, and lower build-up-edge (BUE) compared with the uncoated HSS drill bits for AM fabricated titanium alloys. However, the carbide drill appeared to offer negligible improvement over the uncoated HSS drill when employed with the PM fabricated titanium alloy. In spite of the improvement in the drilling performance offered by the carbide drills for the AM titanium alloy, TiB intermetallic particles (part of the AM titanium microstructure) contributed to the damage of the coated carbide drill which would limit the drill lifetime.

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Section: Introductionmentioning

confidence: 99%

The influence of tool quality on the machining of additive manufactured and powder metallurgy titanium alloys

Tran

Gali

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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show abstract

“…Titanium alloys are attractive metallic materials for the aerospace and general engineering industries due to their high specific strength, high strength-to-weight ratio, high ductility, their fracture resistance characteristics, and excellent corrosion resistance (Ref 1, 2). However, due to their high chemical reactivity and low thermal conductivity (Ref 3, 4), which result in adhesion to the tool surfaces, high machining temperatures, as well as high cutting forces, titanium alloys are regarded as difficult-to-cut materials (Ref 5,6).…”

Section: Introductionmentioning

confidence: 99%

The Influence of Polymeric Ester-Type Additives on the Performance of Metal Cutting Fluids for Machining of Titanium Alloy

Mohammadi

Gali

et al. 2021

J. of Materi Eng and Perform

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The introduction of additives to metal working fluid (MWF) compositions helps to reduce friction and wear while holding the possibility of sustainability to the environment. This study was performed to examine polymeric ester additives' influence on the MWFs performance during the drilling of a titanium alloy, Ti-6Al-4V, under a constant removal rate (MRR) of 4.2 mm 3 /s. The specific cutting energy (SCE) and build-up edge (BUE) were evaluated to assess the additives' performance in the MWFs. It was observed that the drilling performance of the polymeric ester additives was dependent on the drilling conditions employed. The high polarity polyester additive with high molecular weight displayed enhanced drilling performance under the drilling conditions with cutting speeds of 0.105, 0.188, and 0.293 m/s, and respective feed rates of 0.040 mm/r, 0.022 mm/r, and 0.014 mm/r. This enhanced drilling condition was reflected in the SCE with the high polarity polyester additive possessing lower values than the low-molecular-weight polymeric ester by 32, 27, and 35%, and the high-molecular-weight polymer ester by 17, 6, and 18% at each of the respective drilling conditions. The high-molecular-weight polymer ester was a more suitable additive under the drilling condition with a cutting speed of 0.419 m/s and feed rate of 0.01 mm/r, boasting a 27 and 24% improvement in SCE compared with the high polarity polyester and low-molecular-weight polymeric ester, respectively. The polymeric ester additives' performance could be attributed to the formation of a carbonrich boundary layer on the cutting blade and the presence of oxygen and carbon in the BUE on the cutting edges.

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Tribological performance of iron- and nickel-base self-lubricating claddings containing metal sulfides at high temperature

et al. 2022

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Iron-based coatings with the incorporation of solid lubricants have been prepared by means of laser cladding, in an effort to control friction and decrease tool wear at high temperatures during metal forming applications. The choice of a Fe-based powder has been considered advantageous, as it can lead to decreased costs compared to nickel-based claddings previously studied by the authors, in addition to having a lower environmental impact. In particular, the incorporation of transition metal dichalcogenides such as MoS2 as precursors leads to the encapsulation of silver in Fe-based self-lubricating claddings, resulting in a uniform distribution of the soft metal across the thickness of the coating. Subsequent tribological evaluation of the claddings at high temperatures shows that the addition of lubricious compounds leads to lower friction at room temperature and significantly decreased wear up to 600 °C compared to the unmodified iron-based reference alloy, although higher than similar self-lubricating Ni-based claddings. In order to cast light into these observed differences, the corresponding microstructures, phase composition, and self-lubricating mechanisms have been studied and compared for Fe- and Ni-based claddings having both of them the addition of silver and MoS2. The results suggest a key role of the formation of protective tribolayers on the counter body during high temperature sliding contact. Additional simulation of the phase evolution during solidification reveals that the formation of different chromium- and nickel-based metal sulfides in Fe- and Ni-claddings during laser cladding by the decomposition of MoS2 plays a key role in determining their tribological behaviour at high temperatures.

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Analysis of Ti–6Al–4V adhesion to AISI 52100 steel and TiN during unlubricated sliding contact

Cited by 9 publications

References 24 publications

The influence of tool quality on the machining of additive manufactured and powder metallurgy titanium alloys

The influence of tool quality on the machining of additive manufactured and powder metallurgy titanium alloys

The Influence of Polymeric Ester-Type Additives on the Performance of Metal Cutting Fluids for Machining of Titanium Alloy

Tribological performance of iron- and nickel-base self-lubricating claddings containing metal sulfides at high temperature

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